import React from 'react';
import './App.css';
import MachineRoom from './components/MachineRoom';
// 机房对象
let machineRoom: MachineRoom;
let canvas : HTMLCanvasElement;
function App() {
  return (
    <div className="App">
      <canvas id='canvas' ref={(ele:HTMLCanvasElement)=>(canvas  = ele)}></canvas>
    </div>
  );
}

export default App;
